KT-2849 Object that are not imported do not show up in completion

#KT-2849 Fixed

idea/testData/completion/handlers/multifile/ImportAlreadyImportedObject-1.kt

@@ -0,0 +1,7 @@
+package some
+
+import test.SomeTestObject
+
+fun test() {
+  SomeTestObject<caret>
+}

idea/testData/completion/handlers/multifile/ImportAlreadyImportedObject-2.kt

@@ -0,0 +1,3 @@
+package test
+
+object SomeTestObject

idea/testData/completion/handlers/multifile/ImportAlreadyImportedObject.kt.after

@@ -0,0 +1,7 @@
+package some
+
+import test.SomeTestObject
+
+fun test() {
+  SomeTestObject<caret>
+}